EP 1322681 A1 20030702 - PROCESS FOR PRODUCING BIMODAL POLYETHYLENE RESINS
Title (en)
PROCESS FOR PRODUCING BIMODAL POLYETHYLENE RESINS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON BIMODALEN POLYETHYLENHARZEN
Title (fr)
PROC D DESTIN LA PRODUCTION DE R SINES DE POLY THYL NE BIMODALES
Publication
Application
Priority
- EP 01986305 A 20011002
- EP 0111394 W 20011002
- EP 00121646 A 20001004
Abstract (en)
[origin: EP1195388A1] A process for producing bimodal polyethylene resins in two reactors in series, the process comprising producing a first polyethylene resin fraction in a first slurry loop reactor in a diluent in the presence of a catalyst and producing a second polyethylene resin fraction in a second slurry loop reactor, serially connected to the first reactor, in the diluent in the presence of the catalyst, the first polyethylene resin fraction being passed from the first reactor to the second reactor together with the catalyst, one of the first and second reactors producing a resin fraction of higher molecular than the resin fraction produced by the other of the first and second reactors, characterised in that the first reactor is fed with a feed of ethylene and diluent having an ethylene content of at least 70 wt% based on the weight of the diluent and in that in the first reactor the slurry of polyethylene in the diluent has a solids content of at least 30 wt% based on the weight of the diluent.
IPC 1-7
IPC 8 full level
B01J 19/18 (2006.01); C08F 2/00 (2006.01); C08F 2/14 (2006.01); C08F 10/02 (2006.01); C08F 297/08 (2006.01)
CPC (source: EP KR US)
B01J 19/1837 (2013.01 - EP US); C08F 10/02 (2013.01 - EP KR US); B01J 2219/0004 (2013.01 - EP US)
Citation (search report)
See references of WO 0228922A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1195388 A1 20020410; AT E509042 T1 20110515; AU 2164202 A 20020415; CN 1326887 C 20070718; CN 1468264 A 20040114; DK 1322681 T3 20110620; EP 1322681 A1 20030702; EP 1322681 B1 20110511; ES 2363493 T3 20110805; JP 2004514743 A 20040520; JP 4101648 B2 20080618; KR 100803995 B1 20080218; KR 20030071760 A 20030906; NO 20031432 D0 20030328; NO 20031432 L 20030328; NO 333351 B1 20130513; PT 1322681 E 20110705; US 2004077803 A1 20040422; US 2006189768 A1 20060824; US 7034092 B2 20060425; WO 0228922 A1 20020411
DOCDB simple family (application)
EP 00121646 A 20001004; AT 01986305 T 20011002; AU 2164202 A 20011002; CN 01816800 A 20011002; DK 01986305 T 20011002; EP 0111394 W 20011002; EP 01986305 A 20011002; ES 01986305 T 20011002; JP 2002532503 A 20011002; KR 20037004765 A 20030403; NO 20031432 A 20030328; PT 01986305 T 20011002; US 39816203 A 20031117; US 41016906 A 20060424